Improvement in harvesters



o. P. GRON'BERG.

Harvester.

No. 213,106. 'Pat ented Man-11,1819.

77 0??? an ea I 2% Z01.

UNITED STATES PATENT CHARLES P. GRONBERG, OF ELGIN, ILLINOIS.

lM PROVEM ENT IN HARVESTERS.

Specification forming pait of Letters Patent No. 213,106, dated March11, 1879; application filed June 22, 1878.

To all whom it may concern:

Be it known that I, .CHARLES P. GRON- BERG, of Elgin, in the county ofKane and State of Illinois, have invented a certain new and usefulImprovement in Means for Rocking and Lifting the Finger-Bars ofHarvesters; and I do hereby declare the following to be a full and exactdescription of the same, reference beinghad to the aecompanyin gdrawings, forming part of this specification, in which- Figure 1 is afront elevation of a harvester, showing the application of myimprovements; and Fig. 2 is a side elevation of the same, the innerwheel being broken away to show the operatinglever and its connections.

Similar letters of reference in the several figures denote the sameparts.

My invention has for its object to improve the means for rocking andlifting the fingerbars of harvesters; and it consists in a certain novelconstruction of parts, whereby a single lever is adapted to perform boththe aforesaid operations, as I will now proceed to describe.

In the accompanying drawings, A represents the supporting-wheels, B theaxle, and O the frame, of a harvester, mounted thereon in the usual orany preferred manner. D is the arm of the finger-bar, hinged at one endto the front of the frame, and braced from the rear end by the rod 13.The projecting end of this arm is'formed with a journal, which entersthe upper part of a double thimble, F, the lower part of which isjournaled between lugs g g on the finger-bar H, as shown. Thisconnection permits the finger-bar to turn on the journal of the arm, andalso to swing upward into a substantially vertical position.

I is a crankshaft, having its bearings on the arm D, so as to oscillatefreely. Its inner end is bent upward, and pivoted bya link, j, to anupwardly-projecting arm, it, formed on the upper part of the doublethimble, and its opposite end is also bent at right angles to the mainportion, and connected, by a chain or cord, L, to the short arm of alever, M, pivoted to the side of the main frame or to a segmental r'ack,N, affixed thereto. The short arm of the lever is also connected, by achain or cord, 0, in rear of the cord L, to the hinged arm D, and itslong arm is provided with a spring-catch, P, to engage with thesegmental rack.

By these connections it will be seen that when the lever is operated thecord L, crankshaft, and the double thimble will impart a rocking motionto the finger-bar and elevate the points of the fingers, to enable themto pass over obstructions, while a further movement of the lever willraise the whole fin gerbar and its cutting mechanism through the chain0-. One lever only, therefore, is employed to perform both operations.

A brace, R, connects the arm D with the shoe of the finger-bar, and aprojection, S, on the inner end of the latter bears against the underside of the arm D when the bar is lifted, to prevent it from dropping tothe ground, as will be readily understood.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

'1. The double connecting-thimble F, mounted upon the end of thesupporting-bar, and journaled between lugs g g of the finger-bar, andhaving the projecting arm 70, in combination with the crank-shaft 1,chain L, and lever M, substantially as described, for the purposespecified.

2. The combination, with the finger-bar, its supportin g-bar, and thedouble thimble connec tion, of the crank-shaft I, lever M, and chains L0, whereby a partial movement of the lever will cause the points of thefingers to be raised, and a further movement will lift the fingerbar andcutting mechanism entirely from the ground, substantially as described.

CHARLES PETTER GRONBERG.

\Vitnesses:

D. E. MALONEY, D. W. Nonnrs.

FFIG E.

